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        <h1><a href="../../../../../../index.html">All files</a> / <a href="index.html">tts/src/custom-ui/uni-ui/lib/uni-easyinput</a> common.js</h1>
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<span class="cline-any cline-neutral">&nbsp;</span></td><td class="text"><pre class="prettyprint lang-js"><span class="cstat-no" title="statement not covered" ><span class="fstat-no" title="function not covered" ><span class="branch-0 cbranch-no" title="branch not covered" >/**</span></span></span>
<span class="cstat-no" title="statement not covered" > * @desc 函数防抖</span>
<span class="cstat-no" title="statement not covered" > * @param func 目标函数</span>
<span class="cstat-no" title="statement not covered" > * @param wait 延迟执行毫秒数</span>
<span class="cstat-no" title="statement not covered" > * @param immediate true - 立即执行， false - 延迟执行</span>
<span class="cstat-no" title="statement not covered" > */</span>
<span class="cstat-no" title="statement not covered" >export const debounce = function (func, wait = 1000, immediate = true) {</span>
<span class="cstat-no" title="statement not covered" >    let timer;</span>
<span class="cstat-no" title="statement not covered" >    return function () {</span>
<span class="cstat-no" title="statement not covered" >        let context = this,</span>
<span class="cstat-no" title="statement not covered" >            args = arguments;</span>
<span class="cstat-no" title="statement not covered" >        if (timer) clearTimeout(timer);</span>
<span class="cstat-no" title="statement not covered" >        if (immediate) {</span>
<span class="cstat-no" title="statement not covered" >            let callNow = !timer;</span>
<span class="cstat-no" title="statement not covered" >            timer = setTimeout(() =&gt; {</span>
<span class="cstat-no" title="statement not covered" >                timer = null;</span>
<span class="cstat-no" title="statement not covered" >            }, wait);</span>
<span class="cstat-no" title="statement not covered" >            if (callNow) func.apply(context, args);</span>
<span class="cstat-no" title="statement not covered" >        } else {</span>
<span class="cstat-no" title="statement not covered" >            timer = setTimeout(() =&gt; {</span>
<span class="cstat-no" title="statement not covered" >                func.apply(context, args);</span>
<span class="cstat-no" title="statement not covered" >            }, wait);</span>
<span class="cstat-no" title="statement not covered" >        }</span>
<span class="cstat-no" title="statement not covered" >    };</span>
<span class="cstat-no" title="statement not covered" >};</span>
<span class="cstat-no" title="statement not covered" >/**</span>
<span class="cstat-no" title="statement not covered" > * @desc 函数节流</span>
<span class="cstat-no" title="statement not covered" > * @param func 函数</span>
<span class="cstat-no" title="statement not covered" > * @param wait 延迟执行毫秒数</span>
<span class="cstat-no" title="statement not covered" > * @param type 1 使用表时间戳，在时间段开始的时候触发 2 使用表定时器，在时间段结束的时候触发</span>
<span class="cstat-no" title="statement not covered" > */</span>
<span class="cstat-no" title="statement not covered" >export const throttle = (func, wait = 1000, type = 1) =&gt; {</span>
<span class="cstat-no" title="statement not covered" >    let previous = 0;</span>
<span class="cstat-no" title="statement not covered" >    let timeout;</span>
<span class="cstat-no" title="statement not covered" >    return function () {</span>
<span class="cstat-no" title="statement not covered" >        let context = this;</span>
<span class="cstat-no" title="statement not covered" >        let args = arguments;</span>
<span class="cstat-no" title="statement not covered" >        if (type === 1) {</span>
<span class="cstat-no" title="statement not covered" >            let now = Date.now();</span>
&nbsp;
<span class="cstat-no" title="statement not covered" >            if (now - previous &gt; wait) {</span>
<span class="cstat-no" title="statement not covered" >                func.apply(context, args);</span>
<span class="cstat-no" title="statement not covered" >                previous = now;</span>
<span class="cstat-no" title="statement not covered" >            }</span>
<span class="cstat-no" title="statement not covered" >        } else if (type === 2) {</span>
<span class="cstat-no" title="statement not covered" >            if (!timeout) {</span>
<span class="cstat-no" title="statement not covered" >                timeout = setTimeout(() =&gt; {</span>
<span class="cstat-no" title="statement not covered" >                    timeout = null;</span>
<span class="cstat-no" title="statement not covered" >                    func.apply(context, args);</span>
<span class="cstat-no" title="statement not covered" >                }, wait);</span>
<span class="cstat-no" title="statement not covered" >            }</span>
<span class="cstat-no" title="statement not covered" >        }</span>
<span class="cstat-no" title="statement not covered" >    };</span>
<span class="cstat-no" title="statement not covered" >};</span>
&nbsp;</pre></td></tr></table></pre>

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